4.5.3 assessment time: 10min.
4.3.3 assessment time: 5min.
53 If the estimated weight error of steel exceeds ± 10%, 2.5 points will be deducted for each item.
Table 4.7 If the calculation of the breaking force of steel wire rope and hemp rope is wrong, 2.5 points will be deducted for each item.
Personal safety protection articles.
Other appliances: 1 timer.
4.6 scrapping of steel wire rope, shackle, rope clamp and hook 4.6.1 assessment instrument 1 steel wire rope, shackle, rope clamp, hook and other physical objects or graphic and image data (including those that meet the scrapping standard and have defects); 2.
5 rope clamps of different specifications; 3.
4.2.4 the full score of assessment scoring standard is 10 points.
4.7.2 assessment method 1 randomly select one specification of steel wire rope and hemp rope from various specifications of steel wire rope and hemp rope, and the candidates shall calculate the breaking force and allowable force of steel wire rope and hemp rope respectively; 2 randomly select two kinds of steel components or graphic and image data, and the examinee will estimate their weight and judge their center of gravity position.
4.1.3 assessment time: 10min.
Assessment standard for safe operation skills of construction hoisting signal riggers 4.1 application of hoisting command signal 4.1.1 assessment instrument 1 set of red and green flags for hoisting command signal, 1 whistle for command and 1 timer; 2.
2.5 points for correctly judging one specification of steel wire rope within the specified time; If a lifting sling, rigging and machine are correctly identified within the specified time, 1 point will be obtained.
4.3 threading pulley block 4.3.1 one assessment instrument, two pulley blocks, two hemp ropes (or chemical fiber ropes) with a length of 4m, and one timer; 2.
See table 4.7 for the assessment scoring standard.
4.2 device rope clamp 4.2.1 assessment instrument 1 three different specifications of steel wire rope (the length of each steel wire rope is 3 ~ 4m); 2.
If the bolt fastening, rope clamp spacing and safety bend (rope head) setting do not meet the requirements, 2 points will be deducted for each item.
4.5.2 assessment method 1 randomly select two steel ropes of different specifications, and the examinee will judge the specification of the steel rope; 2 randomly select 5 kinds of lifting cranes, rigging and machines and tools from the physical objects or diagrams and video data, and the candidates will identify and explain their names.
Personal safety protection articles.
2.5 points will be given for each item if it is correctly judged and explained within the specified time; If the judgment is correct but the reason cannot be explained accurately, 1 point will be given for each item.
4.2.3 assessment time: 10min.
5.1, table 5.1) table 5.1 (unit: m) crane height s1s2d1d2d320 ≤ h ≤ 30 18131.71.92.1 5.1.1 assessment equipment and apparatus: 1 fixed QTZ series tower crane with lifting height above 20m and below 30m; 2.
Side length of water tank 1000 × one thousand × 1000mm, the water surface is 200mm away from the box mouth, and the hook is 1000mm away from the box mouth; 3.
4.7.3 assessment time: 10min.
3 points for completing an action according to the standard.
4.6.2 assessment method: randomly select 4 pieces (sheets) from the steel wire rope, shackle, hook, rope clamp or graphic and video data, and the examinee will judge whether they meet the scrapping standard or have defects, and explain the reasons.
4.4.2 the examinee shall weave and tie two kinds of knots and explain their application occasions.
See table 5.1.4 for assessment and scoring criteria..
Other instruments: 2 wrenches and 1 timer; 4.
Personal safety protection articles.
Other appliances: 1 set of red and green flags for hoisting command signal, 1 whistle for command and 1 timer; 4.
Other appliances: 1 timer; 4.
5.1.3 assessment time: 4min.
4.7.4 the full score of the assessment scoring standard is 20.
Other appliances: 1 timer.
5.1.4 the full score of the assessment scoring standard is 40.
Several sections of hemp rope (or chemical fiber rope) with a length of 1m; 2.
The details can be adjusted according to the actual assessment.
54 If the center of gravity position cannot be correctly determined, 2.5 points will be deducted for each item A total of 20 assessment standards for safe operation skills of construction hoisting machinery drivers (tower cranes) 5.1 fixed point parking of lifting water tank (Fig.
4.5 identification and judgment of lifting slings, rigging and machines and tools 4.5.1 number of steel wire ropes of different specifications of assessment instrument 1; 2.
4.3.2 the examinee shall wear and wind a pair of pulley blocks by using the forward threading method and the flower threading method respectively.
Personal safety protection articles.
Lifting objects: 1 water tank.
Other appliances: 1 timer.
4.4 tying knots 4.4.1 assessment instruments 1.
The details can be adjusted according to the actual simulation.
5.1.2 examination method after receiving the command signal, the examinee shall lift the water tank from position a and put it into circle B and circle C successively, then lift the water tank from position C and put it back into circle B and circle a, and finally lift the water tank from position a and put it directly into circle C.
When the water tank is lifted from each place, it is 4000mm from the ground, and it is allowed to stop twice during each descent.
If the winding is correct and standard within the specified time, 5 points will be given for each pair; If the threading is basically correct but not standardized, 2 points will be given for each pair.
4.4.4 the full score of assessment scoring standard is 10 points.
4.3.4 the full score of assessment scoring standard is 10 points.
Shackle, rope clamp, Jack, chain block, winch, chain block, electric hoist and other lifting cranes, rigging and machines and tools, physical or graphic and video data; 3.
4.1.2 assessment method under the command of the assessor, the examinee completes the five command signal actions specified in hoisting command signal (gb5082) by using the combination of audio signal and gesture signal and audio signal and flag signal.
4.5.4 the full score of assessment scoring standard is 10 points.
Steel components (simple components composed of pipes, wires, plates and profiles) physical objects, diagrams and image data; 3.
4.1.4 the full score of assessment scoring standard is 30 points.
5 points will be given for each type if it is correctly coded and typed within the specified time and its application occasions are correctly explained; 3 points will be given for each type if it is correctly coded but cannot correctly explain its application occasions; 2 points will be given for each type that is wrongly typed but can correctly explain its application.
4.6.4 the full score of assessment scoring standard is 10 points.
Personal safety protection articles.
If the calculation of the allowable tension of steel wire rope and hemp rope is wrong, 2.5 points will be deducted for each item.
If the specification of the rope clamp does not match the steel wire rope (or the number of rope clamps does not meet the requirements or the setting direction of the rope clamp is wrong), no score will be given.
4.2.2 examination method: the examinee shall install a group of steel wire rope clamps.
4.4.3 assessment time: 5min.
4.7 weight estimation 4.7.1 number of steel wire ropes and hemp ropes of various specifications; 2.
4.6.3 assessment time: 8min.
